Seaweed in the Schleswig-Holstein Wadden Sea 1996-08-21 (GK)

Aircraft mapping of seagrass meadows since 1991 as part of the Trilateral Monitoring Programme (TMAP). 2 density classes of closed stocks are recorded. The identification of the surfaces from the sports aircraft is only possible from about 25% coverage, Zostera nana and Z. marina are not differentiated. The results are entered in maps according to the observations, and the positional inaccuracies are greater for remote stocks. Similar, but differing, mappings from 1989 and 1990 are available in the context of ecosystem research in Schleswig-Holstein's Wadden Sea.本数据集涵盖1991年起作为三边监测计划（Trilateral Monitoring Programme, TMAP）组成部分所开展的海草床航空测绘成果。数据集记录了两类密度等级的闭合海草群落。仅当海草覆盖度约达25%时，方可通过运动型飞机完成该类地表的识别；且未对矮大叶藻（Zostera nana）与大叶藻（Zostera marina，缩写Z. marina）进行区分。测绘成果依据观测记录标注于对应地图中，偏远海草群落的位置误差相对更大。1989年与1990年开展的相似但存在差异的航空测绘数据，可在德国石勒苏益格-荷尔斯泰因州瓦登海的生态系统研究项目中获取。